{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:58.733623", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2016-Mar-21_to_2016-Mar-25_203.0_21.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2016030001913}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "March 21 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 89060.41917096302}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Pacific-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["North Pacific Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 21.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 203.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "203.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 202.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 206.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-157.0, 22.25], [-156.47, 22.03], [-156.25, 21.5], [-156.47, 20.97], [-157.0, 20.75], [-157.53, 20.97], [-157.75, 21.5], [-157.53, 22.03], [-157.0, 22.25]]]]}, "2016-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.25, 22.5], [-158.03, 23.03], [-157.5, 23.25], [-156.97, 23.03], [-156.82, 22.68], [-156.75, 22.65], [-156.5, 22.75], [-155.97, 22.53], [-155.82, 22.18], [-155.75, 22.15], [-155.5, 22.25], [-155.25, 22.15], [-155.0, 22.25], [-154.47, 22.03], [-154.32, 21.68], [-153.97, 21.53], [-153.75, 21.0], [-153.85, 20.75], [-153.82, 20.68], [-153.47, 20.53], [-153.25, 20.0], [-153.35, 19.75], [-153.25, 19.5], [-153.47, 18.97], [-153.82, 18.82], [-153.97, 18.47], [-154.5, 18.25], [-155.03, 18.47], [-155.25, 19.0], [-155.15, 19.25], [-155.18, 19.32], [-155.53, 19.47], [-155.75, 20.0], [-155.65, 20.25], [-155.68, 20.32], [-156.03, 20.47], [-156.18, 20.82], [-156.5, 20.96], [-157.0, 20.75], [-157.53, 20.97], [-157.75, 21.5], [-157.65, 21.75], [-157.68, 21.82], [-158.03, 21.97], [-158.25, 22.5]]]]}, "2016-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.15, 23.25], [-158.25, 23.5], [-158.03, 24.03], [-157.68, 24.18], [-157.53, 24.53], [-157.0, 24.75], [-156.47, 24.53], [-156.32, 24.18], [-155.97, 24.03], [-155.82, 23.68], [-155.47, 23.53], [-155.25, 23.0], [-155.35, 22.75], [-155.25, 22.5], [-155.35, 22.25], [-155.32, 22.18], [-155.25, 22.15], [-155.0, 22.25], [-154.47, 22.03], [-154.32, 21.68], [-153.97, 21.53], [-153.75, 21.0], [-153.85, 20.75], [-153.82, 20.68], [-153.47, 20.53], [-153.25, 20.0], [-153.35, 19.75], [-153.25, 19.5], [-153.47, 18.97], [-153.82, 18.82], [-153.97, 18.47], [-154.5, 18.25], [-155.03, 18.47], [-155.18, 18.82], [-155.53, 18.97], [-155.75, 19.5], [-155.65, 19.75], [-155.75, 20.0], [-155.65, 20.25], [-155.68, 20.32], [-156.03, 20.47], [-156.18, 20.82], [-156.5, 20.96], [-157.0, 20.75], [-157.53, 20.97], [-157.75, 21.5], [-157.65, 21.75], [-157.68, 21.82], [-158.03, 21.97], [-158.25, 22.5], [-158.15, 22.75], [-158.25, 23.0], [-158.15, 23.25]]]]}, "2016-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-158.15, 23.25], [-158.25, 23.5], [-158.03, 24.03], [-157.68, 24.18], [-157.53, 24.53], [-157.0, 24.75], [-156.47, 24.53], [-156.32, 24.18], [-155.97, 24.03], [-155.82, 23.68], [-155.47, 23.53], [-155.25, 23.0], [-155.35, 22.75], [-155.25, 22.5], [-155.35, 22.25], [-155.32, 22.18], [-155.25, 22.15], [-155.0, 22.25], [-154.47, 22.03], [-154.32, 21.68], [-153.97, 21.53], [-153.75, 21.0], [-153.85, 20.75], [-153.82, 20.68], [-153.47, 20.53], [-153.25, 20.0], [-153.35, 19.75], [-153.25, 19.5], [-153.47, 18.97], [-153.82, 18.82], [-153.97, 18.47], [-154.5, 18.25], [-155.03, 18.47], [-155.18, 18.82], [-155.53, 18.97], [-155.75, 19.5], [-155.65, 19.75], [-155.75, 20.0], [-155.65, 20.25], [-155.68, 20.32], [-156.03, 20.47], [-156.18, 20.82], [-156.5, 20.96], [-157.0, 20.75], [-157.53, 20.97], [-157.75, 21.5], [-157.65, 21.75], [-157.68, 21.82], [-158.03, 21.97], [-158.25, 22.5], [-158.15, 22.75], 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1.4017058468039856, 1.2654383228670045]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.915208335371517, 1.424222206295667, 1.7300435174038853, 1.7691725930054645, 1.7414830186138488]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.147927103821867, 1.6637182329291569, 1.6293491846992507, 1.6764370854835295, 1.519068443049088]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.147927103821867, 1.9964548947279475, 2.0550721823927756, 1.8533050471705492, 1.9148498136470589]}}